This type of puzzle is one of my class’s favourites. We tried it for the first time as an optional puzzle when we were learning about the Viking history of Gainsborough. It proved to be so popular that we have revisited a few times since in different contexts. Because the strategy to solve it requires you to talk about grouping and remainders, it is an excellent, concrete context for teaching division by drawing groups, and reinforcing the link between division and multiplication.

The class have got quite sophisticated now, that for most of them it is about number sequences more than division, and they can confidently work with multiples up to 10, with remainders up to 9 and with grouping numbers up to 100.

Here are the contexts we have met the problem in so far. Notice the first puzzles use the clues from Susie snake, the second uses the clues from Maisie mouse.

**Vikings**

**African animals**

**Christmas **

**Robots**

**Healthy eating**

**Skeletons**

**Tudors**

In writing these puzzles, I found this interactive on Nrich.maths.org very helpful. Click on the picture to follow the link.